mercury 9.8hp powerhead assy

[brokejonboat]

i got a used 9.8hp powerhead and trying to find what year it here is the SERIAL NUMBER- 3926716 i got this for the switch box and going to sell the rest but dont know the year its a 70's or 80's model ???????

 

[Laddies]

Re: mercury 9.8hp powerhead assy

1974